From the Introduction: "Although many prayer books and breviaries have been compiled over the centuries, this one has been adapted for those experiencing the Daily Office for the first time. Rather than including all the parts of the Anglican/Episcopal Book of Common Prayer (BCP), this is focused around the four main hours (offices) of prayer: Morning, Midday, Evening, and Compline (before retiring for the day). Additionally, portions of the offices have been left out to streamline the offices and, hopefully, render them more beginner-friendly."